A vulnerability classified as critical was found in TOTOLINK EX200 4.0.3c.7646_B20201211. Affected by this vulnerability is the function loginauth of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument http_host leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-273259. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.
| Link | Tags |
|---|---|
| https://vuldb.com/?id.273259 | vdb entry permissions required technical description |
| https://vuldb.com/?ctiid.273259 | signature vdb entry permissions required |
| https://vuldb.com/?submit.379314 | third party advisory vdb entry |
| https://github.com/abcdefg-png/IoT-vulnerable/blob/main/TOTOLINK/EX200/loginauth.md | third party advisory exploit technical description |